Quote Originally Posted by grahamp View Post
Do you load the 2509 reels with the emulsion out, by any chance?
This is probably 'it'. The sheet springs outwards in the track, so load it with the emulsion side concave.

You can put the dry-but-imperfect sheets back in the tank, emulsion side inwards, and refix/rewash as you will probably find it more convenient (and with less risk of damage when you haven't done this before) than using trays.